Stonesoft - Company Announcement

Stonesoft share subscriptions with stock options and increase in share capital

Stonesoft Corporation Stock Exchange Release November 29, 2010 at 2:00 p.m.

A total of 168 500 shares have been subscribed with Stonesoft Option Programs.
The share subscriptions were based on the Option Program 2004A, 2004B, 2004C and
2004D options (128 500 shares) and Option Program 2008A options (40 000 shares).
According to the terms of the Option Programs, the subscription price per share
was EUR 0.56 (Option Program 2004) and EUR 0.30 (Option Program 2008).

The corresponding increase of EUR 2 570.00 in the share capital has been entered
in the Finnish Trade Register on November 26, 2010. After the increase, the
share capital of Stonesoft Corporation is EUR 1 150 574.64 in total. The share
capital is divided into 63 312 482 shares. The new shares will be admitted to
trading on the NASDAQ OMX Stock Exchange Ltd together with the existing shares
as of November 29, 2010. The new shares will provide the shareholders with full
shareholder rights.

The Stonesoft Option Program 2004 is based on the resolutions of the Annual
General Meeting on November 24, 2004 and Option Program 2008 is based on the
Board of Directors resolution on May 6, 2008 and June 17, 2008, based on the
authorization granted by the Annual General Meeting on April 23, 2008. The terms
of the programs have been published by previous stock exchange releases.

Stonesoft Corporation

Ilkka Hiidenheimo
Chief Executive Officer

For further information, please contact:
Mikael Nyberg
CFO
Tel. +358 9 47 67 11

Distribution:
NASDAQ OMX Helsinki Ltd
Main mediawww.stonesoft.com






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